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A75 Text (wordpad)
A75 Text (wordpad)

... heatsink so should a fault occur that does not blow the fuse, the amp has a safety cut-out. This switch has quite a large hysteresis so the amp will not try to come on until the temperature has dropped. Bridge rectifier capacitor diodes. I placed 100nF polyester capacitors across all of the bridge r ...
LM317L 3-Terminal Adjustable Regulator - Elektronik
LM317L 3-Terminal Adjustable Regulator - Elektronik

... vent the capacitors from discharging through low current points into the regulator. Most 10 mF capacitors have low enough internal series resistance to deliver 20A spikes when shorted. Although the surge is short, there is enough energy to damage parts of the IC. When an output capacitor is connecte ...
Document
Document

... Shield diameter: 0.116 inches; cable 2 inches over ground plane ...
Filters and Waveform Shaping
Filters and Waveform Shaping

... Ferrite is a ferromagnetic oxide of iron of high magnetic permeability formed into a ceramic. It can be used at much higher frequencies than ordinary iron cores because its high electrical resistivity suppresses the eddy currents that cause energy loss in iron metal cores. You will need to wind abou ...
MC33363A - High Voltage Switching Regulator
MC33363A - High Voltage Switching Regulator

... This 6.5 V output is available for biasing external circuitry. It requires an external bypass capacitor of at least 1.0 mF for stability. ...
Design of High Voltage Low Power Supply Device
Design of High Voltage Low Power Supply Device

Sink vs Source
Sink vs Source

Effect of the Core Loss Resistance on the Steady State
Effect of the Core Loss Resistance on the Steady State

NCV891330 - 3 A, 2 MHz Low-Iq Dual-Mode Step-Down
NCV891330 - 3 A, 2 MHz Low-Iq Dual-Mode Step-Down

... battery−connected applications that must operate with up to a 45 V input supply. Depending on the output load, it operates either as a PWM Buck Converter or as a Low Drop−Out Linear Regulator, and is suitable for systems with low noise and Low Quiescent Current requirements often encountered in auto ...
Fuzzy Controlled Cascaded H-Bridge Multilevel Inverter
Fuzzy Controlled Cascaded H-Bridge Multilevel Inverter

UNIT 2 PPT
UNIT 2 PPT

... The series element controls the amount of the input voltage that gets to the output. If the output voltage increases (or decreases), the comparator circuit provides a control signal to cause the series control element to decrease (or increase) the amount of the output voltage. ...
Chapter 4: Component Based
Chapter 4: Component Based

... If you would like to build the model yourself, the sine voltage component is located in the Modelica.Electrical.Analog.Sources package, and the rest of the components in the Modelica.Electrical.Analog.Basic package. Note that some of the parameter values differs from the default, so in order to obta ...
Action Pak AP4300 Data Sheet
Action Pak AP4300 Data Sheet

... stage which allows zero and span adjustments. In units having a current output (e.g. 4-20mA) the output is a constant current source, controlled by the output buffer stage. With voltage output units (e.g. 0-10V) the output is taken directly form the discrete driver transistor of the buffer stage. Th ...
Megger Insulation Tester Safety
Megger Insulation Tester Safety

The x-ray imaging system
The x-ray imaging system

...  Most imaging systems are designed to operate on 220 V. (some 110 V or 440 V)  However power from the wall is not always ...
Radio Shack Breadboards - Build-It
Radio Shack Breadboards - Build-It

Current, Resistance, DC Circuits, Kirchoff`s Rules
Current, Resistance, DC Circuits, Kirchoff`s Rules

Single Schottky Barrier Diode, 30 V, 3 A
Single Schottky Barrier Diode, 30 V, 3 A

... Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment. The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpos ...
ADXRS624 英文数据手册DataSheet 下载
ADXRS624 英文数据手册DataSheet 下载

... attenuate high frequency noise arising from demodulation spikes at the gyro’s 14 kHz resonant frequency (the noise spikes at 14 kHz can be clearly seen in the power spectral density curve shown in Figure 21). Typically, this additional filter’s corner frequency is set to greater than 5× the required ...
Ohm`s and Kirchhoff`s Laws
Ohm`s and Kirchhoff`s Laws

... I1 = 0.092308A or 92.31mA I2 = 0.01539A or 15.39mA Given these currents, the voltage across R1 using Ohm’s Law is: VR1 = 9.231V. Using the KVL equation from Mesh 1: VR4 = 0.7692V or 769.2mV. Given the current through R3 and R4, the voltages across those resistors, using Ohm’s Law, are: VR2 = 0.3077V ...
1 - LIGO dcc
1 - LIGO dcc

... M11 and M14 reduces to 2VDC, which is well below threshold. R28 will have ~1mA flowing through it when no pulse is commanded. This results in a power dissipation of ~0.4W, so R28 is sized as a 1 watt part. R28 must also be able to operate at 500V, so a suitable high voltage resistor was chosen. c. R ...
Thermoelectric_Cooler_Procedure_and_Background
Thermoelectric_Cooler_Procedure_and_Background

electricity revision and questions 08
electricity revision and questions 08

... wire, graphite. Some conductors are better than others. A substance that is a poor conductor of electricity e.g. plastic, rubber, wood. The current flows from one component to the next , all components are on the same pathway. The current is the same at any point in a series circuit The current flow ...
Series and Parallel Circuits
Series and Parallel Circuits

88974134 - Crouzet
88974134 - Crouzet

... ≤ 2 V for I = 0.5 A (at state 1) Make ≤ 1 ms Release ≤ 1 ms 1 Maximum on inductive load Against overloads and short-circuits : Yes Against overvoltages (*) : Yes Against inversions of power supply : Yes (*) In the absence of a volt-free contact between the logic controller output and the load 1 mA 0 ...
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Resistive opto-isolator



Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.
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